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66 must be left to his own experience and discretion, to correspond with the quantity of soap intended to be perfumed.

Having in the preceding pages exhibited a clear and comprehensive view of the whole proceedings attending the charging, boiling, and finishing of yellow, white, and perfumed, soap, I shall endeavour, in the next place, to present the reader with an account of the making of a different quality of soap, and shew, by a few specimens from real operations, the method, materials, and proportions, used in the manufacturing of black, green, or soft, soap.

The peculiar method pursued in making this soap, differs considerably from that of hard soap. The hard has the whole leys extracted totally before finishing: Soft